Axino dark matter from Q-balls in Affleck-Dine baryogenesis and the coincidence problem
arXiv:hep-ph/0608013 · doi:10.1103/PhysRevLett.98.161304
Abstract
We show that the coincidence can naturally be explained in a framework where axino cold dark matter is predominantly produced in non-thermal processes involving decays of Q-balls formed in Affleck-Dinebaryogenesis. In this approach the similarity between and is a direct consequence of the (sub-)GeV scale of the mass of the axino.
arXiv comment4 pages, no figure, final PRL version
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